Re: Add structure to vector

From:
=?Utf-8?B?SmVmZiBEdW5sYXA=?= <JeffDunlap@discussions.microsoft.com>
Newsgroups:
microsoft.public.vc.stl
Date:
Mon, 16 Apr 2007 12:40:04 -0700
Message-ID:
<572A7E43-2894-4E23-A66D-C5C97F8050A7@microsoft.com>
Uli,

Thanks for your input. I must admit that at my current level, I really
don't understand why the structure's destructor is called 3 times. I must
admit that I don't understand that behavior.

Alternatively, when I create the structure dynamically, the destructor is
called only a single time as a direct result of delete being called.

Isn't that too much work taking care of all the new/delete calls?


I really think that the changes are minimal, the only change to add the
dynamically created structure would be the inclusion of 'new':

vStructs.push_back(new myStruc());

And when I am done using the container, I would have to delete the
structures to reclaim memory:

// delete all pointers to structures
vector <myStruc*>::iterator it; // hyperlink expression iterator
for (it = vStructs.begin();
     it != vStructs.end();
     it++)
{
  // deleting a pointer from the container multiple times is a safe
  // operation when the pointer has been set to zero
  delete *it;
  *it = 0;
}

// the output would now be what I would expect:
Constructor Called
Destructor Called

Thanks

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